Telecommunications Network Identity Mapping for MAC Randomization
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Solution Overview
Problem
Telecommunications networks face challenges in maintaining device-specific long-term tracking of network activity due to transient MAC address modifications by devices, leading to misidentification and hindered customer services and network optimization.
Innovation Solution
A method is introduced to establish a network connection between User Equipment (UE) and both cellular and non-cellular networks, generating a unique identifier that maps to the UE's cellular subscriber identity and network address, ensuring continuity of identity despite MAC address changes, by using a new identifier that is static and anchored to the cellular subscriber identity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If the telecommunications device modifies its MAC address to reset network activity volume, then privacy is improved, but device-specific long-term tracking capability deteriorates
Solution Approach 1:
The patent introduces a mapping mechanism as an intermediary between the MAC address and the device identity. The network maintains a mapping between the current MAC address and a persistent device identifier (such as IMEI or serial number), allowing the network to track the device across multiple MAC address changes while respecting the device's privacy preferences. This intermediary mapping layer resolves the contradiction by enabling tracking without relying on the MAC address alone.
Solution Approach 2:
The patent transitions from relying solely on the MAC address (one-dimensional identification) to a multi-dimensional identification approach that combines MAC address with persistent device identifiers and mapping tables. This dimensional expansion allows the network to maintain device identity continuity even when the MAC address changes, thereby preserving tracking capability while accommodating privacy-preserving MAC randomization.
2Adaptability or versatility
If transient MAC addresses are used for network access, then network connectivity is maintained, but network activity association accuracy deteriorates
Solution Approach 1:
The mapping mechanism serves as an intermediary that connects transient MAC addresses to persistent device identifiers. The network stores mappings between MAC addresses and device identities, enabling accurate association of network activity with the correct device even when MAC addresses change. This intermediary mapping layer preserves both connectivity flexibility and measurement accuracy.
Solution Approach 2:
The network performs preliminary actions by pre-establishing and maintaining mapping tables that associate MAC addresses with persistent device identifiers before network activity occurs. When a device connects using a transient MAC address, the network can immediately retrieve the correct device identity from the pre-established mapping, ensuring accurate activity association without delay.
3Adaptability or versatility
If multiple MAC addresses are associated with a single device, then device mobility and privacy are improved, but network configuration and optimization capability deteriorates
Solution Approach 1:
The mapping mechanism acts as an intermediary that organizes the relationship between multiple MAC addresses and a single device identity. The network maintains structured mapping tables that group multiple MAC addresses under a single persistent identifier, enabling the network to manage device mobility while preserving the ability to perform configuration and optimization tasks targeted at the correct device.
Solution Approach 2:
The patent segments the identification system into distinct components: persistent device identifiers, transient MAC addresses, and mapping tables. This segmentation allows the network to handle multiple MAC addresses systematically while maintaining clear association with the correct device, thereby preserving network optimization capabilities despite device mobility.
Data Source
AI summary
A method (200) of operating a telecommunications network (100), said telecommunications network comprising a cellular telecommunications network (100-1) and a non-cellular telecommunications network (100-2), wherein both of said networks are accessible to a User Equipment (110), UE, the method comprising the steps of: establishing a network connection between the UE and the cellular telecommunications network via the non-cellular telecommunications network (210); obtaining, by means of the cellular telecommunications network, a: unique cellular subscriber identity associated with the UE and for accessing the cellular telecommunications network; and network address associated with the UE and for use with the non-cellular telecommunications network for the network connection (220); generating an identifier for identifying the UE to the non-cellular telecommunications network (230); generating, by means of the cellular telecommunications network, a mapping between the: identifier; unique cellular subscriber identity; and the network address; and receiving, at the non-cellular telecommunications network, based on the generated mapping, the identifier in association with the network address (240).